<!DOCTYPE html>
<html lang="zh">

<head>
  <meta charset="UTF-8">
</head>

<body>
  <div class="btns">
    <div class="btn java">JAVA攻城狮</div>
    <div class="btn golang">Golang工程师!</div>
    <div class="btn js"><span>js攻城狮</span></div>
    <div class="btn nodd-ruby ruby">
      <div class="anim"></div>
      <span>Ruby攻城狮</span>
    </div>

    <div class="btn vb">
      <span>VB攻城狮</span>
      <div class="dot"></div>
    </div>
    <div class="btn python python-1">python攻城狮</div>
    <div class="btn python python-2">python攻城狮</div>
    <div class="btn python python-3">python攻城狮</div>
    <div class="btn python python-4">python攻城狮</div>
    <div class="btn python python-5">python攻城狮</div>

    <div class="btn php php-1">php攻城狮</div>
    <div class="btn php php-2">php攻城狮</div>
    <div class="btn php php-3">php攻城狮</div>
    <div class="btn php php-4">php攻城狮</div>
    <div class="btn php php-5">php攻城狮</div>


    <div class="btn kotlin kotlin-3">kotlin攻城狮</div>
    <div class="btn kotlin kotlin-1">kotlin攻城狮</div>
    <div class="btn kotlin kotlin-4">kotlin攻城狮</div>
    <div class="btn kotlin kotlin-2">kotlin攻城狮</div>
    <div class="btn kotlin kotlin-5">kotlin攻城狮</div>
    <div class="btn c">C语言攻城狮</div>

  </div>
</body>
<style>

  .text-info {
    position: absolute;
    top: calc(50vh - 245px);
    text-align: center;
    font-size: 12px;
    color: #999;
    width: 100%;
    margin-left: -5px;
  }


  .btn {
    vertical-align: top;
    margin: 20px;
    display: inline-block;
    text-align: center;
    width: 160px;
    height: 44px;
    line-height: 44px;
    border-radius: 4px;
    color: #fff;
    cursor: pointer;
  }


  .java {
    color: #EB9E05;
    height: 42px;
    line-height: 42px;
    width: 158px;
    border: 1px solid #EB9E05;
    opacity: 1;
    transition: all .6s;
  }

  .java:hover {
    background: #EB9E05;
    color: #fff;
  }

  .java:active {
    opacity: .7;
  }

  .c {
    height: 44px;
    line-height: 44px;
    background: #55acee;
    transition: all .5s;
    box-shadow: 0px 5px 0px 0px #3486d5;
  }

  .c:hover {
    background-color: #6FC6FF;
  }

  .c:active {
    transform: translate(0px, 4px);
    -webkit-transform: translate(0px, 4px);
    box-shadow: 0px 1px 0px 0px #3486d5;
  }

  @keyframes sheen {
    0% {
      transform: skewY(-45deg) translateX(0);
    }

    100% {
      transform: skewY(-45deg) translateX(12.5em);
    }
  }

  .golang {
    vertical-align: top;
    height: 42px;
    line-height: 42px;
    width: 158px;
    color: #2194E0;
    border: 1px solid #2194E0;
    transition: all 0.2s ease-in-out;
    position: relative;
    opacity: 1;
    overflow: hidden;
  }

  .golang:before {
    content: "";
    background-color: rgba(255, 255, 255, 0.5);
    height: 100%;
    width: 3em;
    display: block;
    position: absolute;
    top: 0;
    left: -4.5em;
    transform: skewX(-45deg) translateX(0);
    transition: none;
  }

  .golang:hover {
    background-color: #2194E0;
    color: #fff;
  }

  .golang:hover:before {
    transform: skewX(-45deg) translateX(260px);
    transition: all 0.5s ease-in-out;
  }

  .golang:active {
    opacity: .8;
  }

  .js {
    width: 160px;
    height: 42px;
    line-height: 42px;
    background: #0D6;
    width: 158px;
    border: 1px solid #0D6;
    overflow: hidden;
    transition: all 0.5s;
    opacity: 1;
  }

  .js:hover,
  .js:active {
    text-decoration: none;
    color: #0C5;
    border-color: #0C5;
    background: #FFF;
  }

  .js:active {
    opacity: .8;
  }

  .js span {
    display: inline-block;
    position: relative;
    padding-right: 0;
    transition: padding-right 0.5s;
  }

  .js span:after {
    content: ' ';
    position: absolute;
    top: 0;
    right: -18px;
    opacity: 0;
    width: 10px;
    height: 10px;
    margin-top: -10px;
    background: rgba(0, 0, 0, 0);
    border: 2px solid #FFF;
    border-top: none;
    border-right: none;
    transition: opacity 0.5s, top 0.5s, right 0.5s;
    transform: rotate(-140deg);
  }

  .js:hover span,
  .js:active span {
    padding-right: 30px;
  }

  .js:hover span:after,
  .js:active span:after {
    transition: opacity 0.5s, top 0.5s, right 0.5s;
    opacity: 1;
    border-color: #0C5;
    right: 0;
    top: calc(50% + 2.5px);
    transform: rotate(-140deg);
  }

  .nodd-ruby {
    background: #C147E6;
    position: relative;
    overflow: hidden;
    z-index: 0;
    cursor: pointer;
    opacity: 1;
    transition: all .3s
  }

  input[type="checkbox"].toggle {
    -moz-appearance: none;
    -webkit-appearance: none;
    position: absolute;
    width: 100%;
    height: 100%;
    margin: 0;
    left: 0;
    top: 0;
    cursor: pointer;
  }

  input[type="checkbox"].toggle:focus {
    outline: 0;
  }

  .anim {
    transform: translate(-50%, -50%);
    position: absolute;
    top: 50%;
    left: 50%;
    z-index: -1;
  }

  .anim:before {
    position: relative;
    content: '';
    display: block;
    margin-top: 100%;
  }

  .anim:after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    border-radius: 50%;
  }

  .node .toggle:checked+.anim {
    animation: .75s anim-in;
  }

  .node .toggle:checked+.anim:after {
    animation: anim-in-pseudo 0.75s;
  }

  .node .toggle:not(:checked)+.anim {
    animation: anim-out 0.75s;
  }

  .node .toggle:not(:checked)+.anim:after {
    animation: anim-out-pseudo 0.75s;
  }

  .node {
    background: #ed3f14;
  }

  .node:hover {
    opacity: .8;
  }

  .ruby:active {
    opacity: .8;
  }

  .ruby:hover>.anim {
    animation: anim-out 0.75s;
  }

  .ruby:hover>.anim:after {
    animation: anim-out-pseudo 0.75s;
  }

  @-webkit-keyframes anim-in {
    0% {
      width: 0%;
    }

    100% {
      width: 100%;
    }
  }

  @-moz-keyframes anim-in {
    0% {
      width: 0%;
    }

    100% {
      width: 100%;
    }
  }

  @-ms-keyframes anim-in {
    0% {
      width: 0%;
    }

    100% {
      width: 100%;
    }
  }

  @keyframes anim-in {
    0% {
      width: 0%;
    }

    100% {
      width: 100%;
    }
  }

  @-webkit-keyframes anim-in-pseudo {
    0% {
      background: rgba(0, 0, 0, 0.3);
    }

    100% {
      background: transparent;
    }
  }

  @-moz-keyframes anim-in-pseudo {
    0% {
      background: rgba(0, 0, 0, 0.3);
    }

    100% {
      background: transparent;
    }
  }

  @-ms-keyframes anim-in-pseudo {
    0% {
      background: rgba(0, 0, 0, 0.3);
    }

    100% {
      background: transparent;
    }
  }

  @keyframes anim-in-pseudo {
    0% {
      background: rgba(0, 0, 0, 0.3);
    }

    100% {
      background: transparent;
    }
  }

  @-webkit-keyframes anim-out {
    0% {
      width: 0%;
    }

    100% {
      width: 100%;
    }
  }

  @-moz-keyframes anim-out {
    0% {
      width: 0%;
    }

    100% {
      width: 100%;
    }
  }

  @-ms-keyframes anim-out {
    0% {
      width: 0%;
    }

    100% {
      width: 100%;
    }
  }

  @keyframes anim-out {
    0% {
      width: 0%;
    }

    100% {
      width: 100%;
    }
  }

  @-webkit-keyframes anim-out-pseudo {
    0% {
      background: rgba(0, 0, 0, 0.35);
    }

    100% {
      background: transparent;
    }
  }

  @-moz-keyframes anim-out-pseudo {
    0% {
      background: rgba(0, 0, 0, 0.35);
    }

    100% {
      background: transparent;
    }
  }

  @-ms-keyframes anim-out-pseudo {
    0% {
      background: rgba(0, 0, 0, 0.35);
    }

    100% {
      background: transparent;
    }
  }

  @keyframes anim-out-pseudo {
    0% {
      background: rgba(0, 0, 0, 0.35);
    }

    100% {
      background: transparent;
    }
  }

  .python {
    transition: 0.5s;
    background-size: 200% auto;
  }

  .python:hover {
    background-position: right center;
  }

  .python-1 {
    background-image: linear-gradient(to right, #f6d365 0%, #fda085 51%, #f6d365 100%);
  }

  .python-2 {
    background-image: linear-gradient(to right, #fbc2eb 0%, #a6c1ee 51%, #fbc2eb 100%);
  }

  .python-3 {
    background-image: linear-gradient(to right, #84fab0 0%, #8fd3f4 51%, #84fab0 100%);
  }

  .python-4 {
    background-image: linear-gradient(to right, #a1c4fd 0%, #c2e9fb 51%, #a1c4fd 100%);
  }

  .python-5 {
    background-image: linear-gradient(to right, #ffecd2 0%, #fcb69f 51%, #ffecd2 100%);
  }

  .php,
  .php::after {
    -webkit-transition: all 0.5s;
    -moz-transition: all 0.5s;
    -o-transition: all 0.5s;
    transition: all 0.5s;
  }

  .php {
    border: 1px solid #C147E6;
    color: #C147E6;
    width: 158px;
    height: 42px;
    line-height: 42px;
    position: relative;
    z-index: 1;
    text-transform: uppercase;
  }

  .php:hover {
    color: #fff;
  }

  .php::before,
  .php::after {
    background: #C147E6;
    content: '';
    position: absolute;
    z-index: -2;
    border-radius: 3px;
  }

  .php-1::after {
    height: 0;
    left: 0;
    top: 0;
    width: 100%;
  }

  .php-1:hover:after {
    height: 100%;
  }

  .php-2::after {
    height: 100%;
    left: 0;
    top: 0;
    width: 0;
  }

  .php-2:hover:after {
    width: 100%;
  }

  .php-3::after {
    height: 0;
    left: 50%;
    top: 50%;
    width: 0;
  }

  .php-3:hover:after {
    height: 100%;
    left: 0;
    top: 0;
    width: 100%;
  }

  .php-4::before {
    height: 100%;
    left: 0;
    top: 0;
    width: 100%;
  }

  .php-4::after {
    background: #fff;
    height: 100%;
    left: 0;
    top: 0;
    width: 100%;
  }

  .php-4:hover:after {
    height: 0;
    left: 50%;
    top: 50%;
    width: 0;
  }

  .php-5 {
    overflow: hidden;
  }

  .php-5::after {
    height: 100%;
    left: -35%;
    top: 0;
    transform: skew(50deg);
    transition-duration: 0.6s;
    transform-origin: top left;
    width: 0;
  }

  .php-5:hover:after {
    height: 100%;
    width: 135%;
  }

  .kotlin {
    background: none;
    border: 1px solid;
    width: 158px;
    height: 42px;
    line-height: 42px;
    letter-spacing: inherit;
    text-transform: inherit;
    transition: color 1s;
  }

  .kotlin-1 {
    color: #9c89f7;
  }

  .kotlin-1:hover {
    animation: halftone 1s forwards;
    background: radial-gradient(circle, #9c89f7 0.2em, transparent 0.25em) 0 0/1.25em 1.25em, radial-gradient(circle, #9c89f7 0.2em, transparent 0.25em) 6.25em 6.25em/1.25em 1.25em;
    color: #e4f789;
  }

  @keyframes halftone {
    100% {
      background-size: 2.375em 2.375em, 0.1em 0.1em;
    }
  }

  .kotlin-2 {
    color: #82f6d8;
  }

  .kotlin-2:hover {
    animation: stripes-move 0.75s infinite linear;
    background: repeating-linear-gradient(45deg, #82f6d8 0, #82f6d8 0.25em, transparent 0.25em, transparent 0.5em);
    color: #f682a0;
  }

  @keyframes stripes-move {
    100% {
      background-position: 5em 0px;
    }
  }

  .kotlin-3 {
    color: #d3f169;
  }

  .kotlin-3:hover {
    animation: sawtooth 0.35s infinite linear;
    background: linear-gradient(45deg, #d3f169 0.5em, transparent 0.5em) 0 0/1em 1em, linear-gradient(-45deg, #d3f169 0.5em, transparent 0.5em) 0 0/1em 1em;
    color: #8769f1;
  }

  @keyframes sawtooth {
    100% {
      background-position: 1em 0;
    }
  }

  .kotlin-4 {
    color: #eea163;
  }

  .kotlin-4:hover {
    animation: zigzag 1s linear infinite;
    background: linear-gradient(135deg, rgba(238, 161, 99, 0.25) 0.25em, transparent 0.25em) -0.5em 0, linear-gradient(225deg, rgba(238, 161, 99, 0.25) 0.25em, transparent 0.25em) -0.5em 0, linear-gradient(315deg, rgba(238, 161, 99, 0.25) 0.25em, transparent 0.25em) 0 0, linear-gradient(45deg, rgba(238, 161, 99, 0.25) 0.25em, transparent 0.25em) 0 0;
    background-size: 0.75em 0.75em;
    color: #63b0ee;
  }

  @keyframes zigzag {
    100% {
      background-position: 1em 0, 1em 0, -0.75em 0, -0.75em 0;
    }
  }

  .kotlin-5 {
    color: #f9879b;
  }

  .kotlin-5:hover {
    animation: pulse 1s ease-in infinite;
    background: radial-gradient(circle, rgba(249, 135, 155, 0.25) 43%, transparent 50%) 0 0/1em 1em, radial-gradient(circle, rgba(249, 135, 155, 0.25) 43%, transparent 50%) 0.5em 0.5em/2em 2em;
    color: #0bdcb7;
  }

  @keyframes pulse {
    50% {
      background-position: 0.66em 0.66em, -0.33em -0.33em;
    }

    100% {
      background-size: 2em 2em, 1em 1em;
      background-position: -1.5em -1.5em, -1em -1em;
    }
  }

  .vb:before,
  .vb:after {
    box-sizing: border-box;
  }

  .vb {
    position: relative;
    width: 158px;
    color: #FA5555;
    height: 40px;
    line-height: 42px;
    border: 2px solid #FA5555;
    border-radius: 14px;
    text-transform: uppercase;
  }

  .dot {
    content: '';
    position: absolute;
    top: 0;
    width: 32px;
    height: 100%;
    border-radius: 50%;
    transition: all 300ms ease;
    display: none;
  }

  .dot:after {
    content: '';
    position: absolute;
    top: -6px;
    height: 5px;
    width: 5px;
    background: #FA5555;
    border-radius: 50%;
    border: 4px solid #FA5555;
    box-shadow: 0 0 .7em #FFF,
      0 0 2em #FA5555;
  }

  .vb:hover .dot,
  .vb:focus .dot {
    animation: atom 2s infinite linear;
    display: block;
  }

  /*calc(160px - 36px)  按钮宽度 - dot宽度 - 边框宽度*/
  @keyframes atom {
    0% {
      transform: translateX(0) rotate(0);
    }

    30% {
      transform: translateX(calc(160px - 36px)) rotate(0);
    }

    50% {
      transform: translateX(calc(160px - 36px)) rotate(180deg);
    }

    80% {
      transform: translateX(0) rotate(180deg);
    }

    100% {
      transform: translateX(0) rotate(360deg);
    }
  }

  .btn-down {
    position: absolute;
    top: calc(50vh - 280px);
    text-align: center;
    border-radius: 4px;
    cursor: pointer;
    left: calc(50vw - 87px);
    width: 160px;
    line-height: 44px;
    color: #fff;
    background: #2194E0;
    opacity: 1;
  }

  .btn-down:active {
    opacity: .8;
  }
</style>

</html>